European Standard Washer EN ISO 9227
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The washer is suitable for construction machinery, automotive suspension systems, wind turbine bolted joints, railway fasteners, and CNC equipment alignment. Its high-strength design and corrosion resistance make it ideal for both industrial and offshore environments.
Standards
EN 14399-3: High-strength structural bolting assemblies
EN 1090-2: Structural steel components
ISO 9001:2015: Quality management systems
EN ISO 9227: Salt spray corrosion testing
DIN 51350: Friction coefficient testing
ISO 7412: Hexagon socket head cap screws
REACH SVHC: Chemical safety compliance
RoHS 2.0: Restriction of hazardous substances
Feature
(1) Multi-layer design with flange plate for stress distribution and spring washer for vibration resistance.
(2) High fatigue strength, capable of 5×10⁶ cycles (EN 13001-3).
(3) Wide temperature resistance from -40°C to +300°C.
(4) Optimized friction coefficient of 0.08–0.12 for secure fastening.
(5) Corrosion-resistant stainless steel (AISI 304/316) with passivated + PTFE coating.
(6) Compliant with EN 14399-3 and ISO 7412 for high-strength bolted connections.
(7) Compact and precise dimensions for consistent assembly performance.
Technical Specifications
| Parameter | Specifications |
|---|---|
| Material Grade | AISI 316L (ISO 3506) |
| Dimensions | M12–M30 (EN 14399-1) |
| Outer Diameter | 22–50 mm (±0.1 mm) |
| Thickness | 2.5–4.0 mm |
| Load Class | 10.9 / 12.9 (DIN 912) |
| Surface Treatment | Passivated + PTFE coating |
| Load Capacity | 120 kN (static), 45 kN (fatigue) |
| Corrosion Resistance | Salt spray ≥ 1000 h (EN ISO 9227) |
Accessories
Included: Standard flange and spring washer set for assembly.
Optional: Custom washers for specialized applications or larger dimensions.
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